The invention relates to an embedded type device CPU and its peripheral equipment state real-time monitoring method and system. A peripheral equipment state acquisition unit is designed on an embedded type device software platform for reading peripheral memorizers of the embedded type device CPU in real time, various states of various kinds of peripheral equipment are obtained, state information is sent to a PC client, and the PC client displays the state information for debugging personnel to analyze the state information. In the embedded type development process, various peripheral registers are timely read so as to check and analyze the peripheral equipment states, when peripheral equipment is abnormal, only by analyzing data recorded by the system, problems can be timely found, test codes do not need to be wrote, burning for abnormity recurring is also not needed, positioning and recurring of the problems are convenient, after it is observed that the peripheral equipment is abnormal, processing is conveniently conducted in time, and the efficiency of testing is thus improved.